NIKE Unisex Flyknit Streak Running Shoe Fabric-And-Synthetic Rubber sole Synthetic-and-fabric A Nike Zoom Air unit in the heel delivers highly responsive cushioning with every stride. An anatomical toe shape and midfoot shank create power and propulsion where you need it most. A Flyknit upper and Flywire cables provide the perfect combination of stretchBreathability and lightweight lockdown. Delivers ultralight support and responsive cushioning.